Lamp support



c. J. DECKER LAMP SUPPORT Filed Feb. 9, 1929 In Ven on Ces fehl .cc /renPatented Dec. 8, 1931 PATENT OFFICE -gcHEsrni DECKER, or TORONTO,ONTARIO, CANADA i. LAMP surroa'r p Application led February 9, 1929.`Serial NO. 338,867.

The Vprincipalobje'cts ofthis invention are to provide a means ofsupporting a lamp from abed frame in such a mannerthat it may be'readily adjusted 'to various positions and held'A sjsecurely intheadjusted position in a-simple and effective manner sothatitcannotf'be accident'ally dislodged but so'arranged that it maybeeasily and quickly moved out of Ithe way withoutbeing removed fromit-ssup'- lowport. f

'A further and very `important vobject is toV provide a support whichmay be extended to 1 an extraordinary distance, either vertically orhorizontally to facilitate its use particu- "larly for hospital purposesand further to provide a support which may be readily utilized for thesupport of utensils required in hospital service. i

The principal features of the invention -consist in the novelarrangement of an upright guide upon a bed frame whereby a supportingmember is adjustably mounted and the adjustable member is capable ofuniversal movement to support a lamp in a raised or "horizontallyextended position.

In the accompanying drawings Figure 1 is an elevational view of the endframe of a bed illustrating the preferred form of application of theinvention as applied to a lamp support.

Figure 2 is a side elevational View of Figure 1.

Figure 3 is a side elevational view showing the lamp support extended ina horizontal position.

Figure 4 is an enlarged longitudinal sectional detail of a portion ofthe extensible lamp supporting post.

Figure 5 is an enlarged perspective detail 'showing the hinge joint ofthe extensible post and the means for locking the post in adjustedpositions.

Figure 6 is a perspective detail of a. support member to be used in thetubular lamp 4arm support.

In the form of the invention herein shown the end frame 1 of the bed isof the usual type of tubular structure having a plurality of `verticaltubes 2 extending downwardly from the horizontal top portion 3 to across tube 4.

One of the vertical tubes 5 extends through the top of the top tube 3and has secured to its upperL end or forming part thereof alongitudinally slotted chuck member 6, provided with a'threaded portion7. f

Achuck sleeve 8 threaded on to the portion 7 is` provided with a taperedinner wall 9 to engage Lthe tapered surface of the slotted chuck member.This sleeve is provided with a suitable head end 10 which enables it tobe ed. readilyjgrasped by the hand for tightening or loosening.

The lower end of the tube 5 may extend below the cross tube 4 if suchlength is desired.

-A long tube or rod 11 is slidably arranged 65 Within the tube 5 andextends through the top of the chuck sleeve. This tube is providedadjacent to its lower end with a hinge joint 12 which allows the majorportion of ,the length of the tube to be bent into right 7() angularposition in relation to the tube 5 to extend horizontall and the jointis so made that the extension portion rests in a horizontal position. A

The upper end of the tube 11 has secured 75 therein a length of fibrerod 13 which forms an insulating connection to the tubular member 14 towhich is secured a flexible lampsupporting arm 15.

The member 14 is provided with a hollow 8()V lateral extension 16through which the electric wires 17 are connected to the lamp socket.

A suitable shade 18 is provided 0n the end of the flexible arm toenclose the lamp.

It will be seen that when the lamp-sup- S5- porting tube l1 is in thevertical osition illustrated in Figures 1 and 2 the flexible arm 15 maybe bent into any desirable position to throw-the light from the lampdownwardly and the arm may be swung horizontally 901' by allowing thetube 11 to rotate in its support;` It may, however, be fastened securelyinany desired position by tightening the chuck sleeve 8`so that theslotted chuck member will grip and hold the tube.

If it is desired to raise the lamp, this may be'done vby loosening thechuck sleeve and simply pulling upwardly upon the tube 11 and then aslight turn of the chuck sleeve will hold it.

- examination is to be made, thelalnp Vsupport tube.y llmay be raisedupwardly v,until sleeve, when it may then be swung to ahorf izontalposition as illustrated in Figure 3 and the horizontally extending'`membermayfbe locked securely or swung from side to side pivoting in thesupport 2 and the flexible' lamp armV on the endvofthis-ntube enablesthe adjustment of the light to any desired position over thev patient.v.f-

It is. Lfrequently af-utensil in an elevated :position above: a bedrfor'fthis purpose the lamp; tube may be 6,'carryingl a' supportlat--itsupper end-@may be inserted I into their vertical` tube'i 53 'andfsecured" 'at any desirable height: above'thevbed;

lTheadvantagesandiuses of afdeviee such fas described fare manifold andwhile I its: uses h'avef'beenparticularly emphasized' in regard tohospital service, it will be readily' appreci-r ated that the' devicemayy v e? :applied'withV adl Y c itl/has been amai aat-it ispiefe'nabieit ing substantially to the internal diameter of the tubularmember whereby said sections are adapted to each engage the inner wallof said tubular member in guiding contact, an insulating extension onone o-fsaid sections adapted to project beyond the tube end when. thesections are housedthereim-alamp fixture mounted onisaid'insultingfextension haying'wires leading thereto beyond said eX-tensiomand a common clamping meansarrangedfonsaidtubularfmember forco-operating with and locking any one of said jointed 'sections` inrigidl relation to said tubular member."v f H In combination, "aibedfranie having a ,V vertical? tubeopen' atthef topa/.aT clutchmou-ntutilizefth'e Ti verticali tube :structure of the f bedr butL itmust? be understood tliatrthe.y vertical:- su'pports nflay be"attacliedffto the-...trame .other '-u'fafys and l while atubularsu-pportfvis j preferab'l'egit'wi-llbe readily appreciated-'thatotherl-iiorms lof vertical suppcarts-mightrbefY Y devised` withoutdeparting from# the .spirit` of thisllinventiona` j *Y What I claim-asmyinventionvi support tor lamps or the'i pifising in 1 combination' a vtubular supp ort;y an

like", yconiexit'e'ns'ible 'member 'formed ot a plural-ity of relativelyadjustable*sections eacli'adapted to' Vengage the inner wall of said`tubular fsup'- 1 45,y

portiin'lgnidih-'g con-t act; clampingim'eans car riedby' said?tubularsupportadaptedito clamp eaclof saidrl sections rigidly. to.lsai'd'i tube Vin adjusted? relation-thereto', a lamp mounted on the.outerot saidy adjustable; sections; anlf insiilati-ng section V-carried b-y theesaid? outer section', andv currentieonducting vWiresplea'd- @fled sectonseach of equal diameter corresponde;

sa'i'd insulatingsectionf, said insulatingsecl tion being: adapted: whenrvsaifd'. sections'l -are housed inlsaidwtubular member toaextend:partly-thereinto'togbe engaged by said clamp'u .ingi-meansandeffectingan insulation between infgi-to`= sai'd outer' section. and lampbeyond-1' said tubular support and clampingmeans and tl-i'e; source' of:currentI .-whenf said jadjstable' member is in either-"its housedorextended position.. v

i In' ada-mp support, Aeombination,n a bed frame `lia-vinga'ltubu'lar'member 'open atthe topgra'member formed oa plurality of jointedon'the.upper end'of;sa-idetubef,y a rod-:slide i' able in; sai d tube andhaving alhinged. portion y at'l its lower.` end,- av rodzotlinsulatingmaterial ,removed and a rod 195 as:shownfiniFigure?,rgdlyzSCllI'GCltUthe uppe-IBndf thezafOIQf said rocha. hollow memberrigid-Lyg secured gto Ithefuppe-rA end-- oil` said insulating rod. andy n having anzopeninginthe-aside. ,thereost5e alamp f holderm'ounte'don:theupperend'iotsaiethok, A low member, and electric wires leading v'throughs said vhol-lowmember; andsaid= lamp

